Comparison

HVAC Pipe Sizer vs Eden Select (S)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HVAC Pipe Sizer

Calculate pipe sizes for liquid systems, including hot and chilled water. Input flow rate, head loss, diameter, or velocity to determine other properties. Supports various liquids, pipe materials, and fittings, with English or metric units.

Highlights
  • Liquid pipe sizing
  • Hydronic system calculations
  • Input flow, head loss, diameter, or velocity
  • Calculate fluid flow and head loss
  • Supports various liquids and pipe materials
  • English and metric unit options
  • Email results
Features
Read full description

The "HVAC Pipe Sizer - Liquid" application allows you to quickly size a simple pipe system by inputting a number of piping and liquid properties, including hot and chilled water (hydronic). This app is a universal app that works on both the iPhone and iPad and adjusts its screen size accordingly. This app now includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 You can specify the total fluid flow in GPM (or L/s) and one of either unit head loss (ft/100ft), pipe internal diameter (inches) or fluid velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total head loss. If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter and one of either unit head loss or fluid velocity parameters to derive the calculated fluid flow and other remaining properties. You can specify additional parameters such as the type of liquid, various properties of the liquid, the pipe material type, the total length of pipe, quantities for up to 11 different types of pipe fittings, and much more. You can also choose to display values in either english or metric units. This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters. This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. You can also manually input exact values. The app allows you to email inputs and results once you have completed an analysis. We also offer the following additional applications for the iPhone/iPad: 1. HVAC Duct Sizer 2. HVAC Pipe Sizer – Gas Low Pressure 3. HVAC Pipe Sizer - Gas High Pressure 4. HVAC Pipe Sizer – Liquid 5. HVAC Pipe Sizer – Steam 6. Steam Tables 7. Psychrometric Plus 8. Psychrometric LT 9. HVAC Pipe Sizer Plus 10. HVAC Pipe Sizer Gas Plus 11. HVAC Toolkit 12. HVAC Toolkit Ultimate 13. HVAC Residential Load Calcs 14. HVAC Load Plus 15. HVAC Equipment Locator 16. ASHRAE Duct Fitting Database 17. ASHRAE 62.1 Ventilation Load Calcs 18. HVAC Psych HD 19. HVAC ResLoad-J 20. HVAC Residential Load Calcs HD

About

Eden Select (S)

This professional HVAC engineering tool helps users perform heat load calculations, select cold rooms, and choose appropriate equipment for refrigeration projects. It provides various references and calculations for freezing times and operational loads, generating printable PDF summaries.

Highlights
  • Heat load calculation (cold room, product, infiltration)
  • Food heat load references
  • Freezing time calculation
  • Total operation load calculation
  • Unit cooler/Evaporator selection
  • Compressor selection
  • Condenser selection
  • Printable PDF summary
Features
Read full description

Eden Select application is a professional HVAC engineering tool to perform heat load calculation, cold room and product selection for users’ references. This mobile application can assist users wherever they are especially working at job site. Functions: - Individual heat load calculation such as cold room load, product load, infiltration load, etc. - Various food heat load references. - Freezing time calculation. - Total operation load calculation. - Unit cooler / Evaporator selection. - Compressor selection. - Condenser selection. - Printable and transmittable PDF summary page. Eden is an international heat exchanger brand in refrigeration industry. We manufacture international quality Heat Exchangers using the latest design and heat transfer technology. Our continuous research and development programs create innovative and energy efficient products through advance technologies which either meet or exceed current industry standards and customer expectations. Eden Cool Solution!

Screenshots

HVAC Pipe Sizer4 screens
Eden Select (S)4 screens

Verdict

The call

The clearest difference is price: Eden Select (S) at Free against HVAC Pipe Sizer's $4.99. Eden Select (S) also leads on in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 8 months). On review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Eden Select (S) is free to download; HVAC Pipe Sizer costs $4.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Eden Select (S) asks for nothing beyond the download.

UpkeepUpdate frequency

HVAC Pipe Sizer ships an update every 8 months, Eden Select (S) every 6 weeks. The most recent releases landed on September 26, 2026 and June 11, 2026 respectively.

Scorecard5 real differences · 5 level
HVAC Pipe Sizer versus Eden Select (S): the parameters behind the verdict, then further details
ParameterHVAC Pipe SizerEden Select (S)
Price$4.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews71.4% of reviews75.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size1 MB45 MB
Age rating4+4+
DeveloperCarmel Software CorporationFar East Group Ltd

Customer experience

HVAC Pipe Sizer

Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Eden Select (S)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

1 purchases

HVAC Pipe Sizer

One-time1
  • HVAC Equipment Locator$9.99
None

Eden Select (S)

No in-app purchases

Questions

Is HVAC Pipe Sizer free?
HVAC Pipe Sizer costs $4.99, and also offers in-app purchases.
Is Eden Select (S) free?
Eden Select (S) is free to download, with no in-app purchases.
Do HVAC Pipe Sizer or Eden Select (S) have ads?
Neither HVAC Pipe Sizer nor Eden Select (S) shows ads.
Which is updated more often, HVAC Pipe Sizer or Eden Select (S)?
HVAC Pipe Sizer ships an update every 8 months, and Eden Select (S) every 6 weeks. Most recently, HVAC Pipe Sizer was updated on September 26, 2026 and Eden Select (S) on June 11, 2026.

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